Gurobi 5.0.1 (linux64) logging started Mon Feb  4 19:40:28 2013

Optimize a model with 156947 rows, 9604 columns and 475398 nonzeros
Presolve removed 11177 rows and 4877 columns
Presolve time: 2.17s
Presolved: 145770 rows, 4727 columns, 441394 nonzeros
Variable types: 43 continuous, 4684 integer (4684 binary)
Found heuristic solution: objective 223619.00000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   34042    1.6646660e+05   0.000000e+00   2.361981e+05      5s
   36645    1.6776854e+05   0.000000e+00   0.000000e+00      6s
   36645    1.6776854e+05   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 1.677685e+05, 36645 iterations, 5.76 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0 167768.536    0   14 223619.000 167768.536  25.0%     -    8s
H    0     0                    167791.00000 167768.536  0.01%     -    8s
H    0     0                    167789.00000 167768.536  0.01%     -    8s
H    0     0                    167776.00000 167768.536  0.00%     -    8s

Explored 0 nodes (36749 simplex iterations) in 8.88 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.677760000000e+05, best bound 1.677690000000e+05, gap 0.0042%